Why did the Army destroy video of the Hasan murders?

  It passed quickly over the radar yesterday, but it was testified this week that cell phone video of the murders which Nadal Hasan committed at Fort Hood were deleted by order from a Pfc's cell phone. The question is why.
  Imagine those images of the murders within our military base transmitted around the world over and over, just as 9/11 images were, which were eventually banned from network television because the images were such stunning reminders of why we fight.
  Andy McCarthy at NRO calls it Willful Blindness:

Based on the Defense Department’s shameful conduct in this case, we have no choice but to believe (unless proven otherwise) that the military did not want to preserve a recording of a jihadist terrorist screaming Allahu Akbar! as he carried out a massacre unmistakably inspired by Islamist ideology. Remember, this is the same Defense Department that, in its purportedly thorough 86-page report on the mass-murder, failed to mention Islam a singletime. As former Navy Secretary and 9/11 Commissioner John Lehman told Time when the report was issued, the Pentagon’s silence “shows you how deeply entrenched the values of political correctness have become[.]… It’s definitely getting worse, and is now so ingrained that people no longer smirk when it happens.”